| Customization: | Available |
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| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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Polysiloxane Silicone Rubber Coating is specifically designed for metal anti-corrosion in the photovoltaic industry. It is a single-component, room-temperature-curing, high-performance anti-corrosion coating. It is suitable for substrates with minimal surface preparation and has excellent compatibility with various coatings, making it applicable to both new and old substrates. The cured coating integrates the functions of both primer and topcoat, offering exceptional corrosion resistance, salt spray resistance, and water resistance. The coating is elastic, allowing it to adapt to the expansion and contraction of the substrate to prevent cracking. Damaged areas can be directly repaired without any interface reaction, and the repaired coating seamlessly integrates with the original coating.
Excellent corrosion resistance - Provides long-term protection against rust, oxidation, and chemical exposure.
Salt spray resistance - Ideal for marine, coastal, and industrial environments where salt-induced degradation is a concern.
Water resistance - Forms a waterproof barrier, preventing moisture ingress and protecting substrates from hydrolysis and swelling.
UV and weather resistance - Maintains performance under extreme sunlight, temperature fluctuations, and harsh weather conditions.
Outstanding elasticity - Accommodates substrate movement (thermal expansion, vibrations, and structural shifts) without cracking or delamination.
High crack resistance - Bridges minor substrate cracks and prevents further propagation, ensuring long-term structural integrity.
Abrasion and impact resistance - Withstands mechanical wear, scratches, and physical stress, making it suitable for high-traffic and industrial applications.
Minimal surface preparation required - Adheres well to lightly prepared surfaces, reducing labor and time costs.
Integrated primer and topcoat functionality - Eliminates the need for multiple layers, streamlining the coating process.
Fast curing and recoating - Allows for quick application and reduces downtime in repair or maintenance projects.
No interface reaction - Compatible with various substrates (metal, concrete, plastics, etc.) without adverse chemical interactions.
Easy repair and touch-up - Damaged areas can be spot-repaired without compromising the coating's overall performance or appearance.
Long service life - Reduces the frequency of recoating, lowering lifecycle costs.
Industrial & Infrastructure - Bridges, pipelines, offshore platforms, tanks, and chemical plants.
Marine & Offshore - Ship hulls, docks, buoys, and coastal structures.
Automotive & Aerospace - Underbody coatings, aircraft components, and corrosion-prone metal parts.
Construction & Architectural - Roofing, facades, and concrete protection in aggressive environments.
Cost-effective - Reduces maintenance and extends asset lifespan.
Eco-friendly options available - Low-VOC formulations comply with environmental regulations.
Customizable finishes - Available in various colors, textures, and gloss levels for aesthetic and functional needs.
3. parameters
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Testing Item
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Standard Requirements
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Test Results
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Condition in Container
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No hard lumps after stirring, in a uniform state
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No hard lumps after stirring, in a uniform state
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Workability
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No obstacles when applying two coats
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No obstacles when applying two coats
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Appearance
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Normal
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Normal
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Hiding Power, g/m²
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≤150
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<130
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Drying Time, h
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Surface Dry Time: ≤4
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<4
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Hard Dry Time: ≤24
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<24
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Fineness, μm
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≤60
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35
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Water Resistance
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No abnormality after 168h
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No abnormality after 168h
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Acid Resistance, 5% HSO
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No abnormality after 168h
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No abnormality after 200h
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Salt Water Resistance, 3% NaCl
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No abnormality after 240h
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No abnormality after 240h
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Salt Spray Resistance
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No blistering, no peeling after 1000h
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No blistering, no peeling after 2000h
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Adhesion, Grade
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≤1
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0
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Flexibility, mm
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≤2
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2
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Impact Resistance, cm
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≥30
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50
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Coating Temperature Change Resistance
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No abnormality after 5 cycles
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No abnormality after 10 cycles
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Surface Preparation
Substrate must be clean, dry, and free of rust (≥Sa1/St2 grade), oil, and contaminants.
Product Preparation
Stir thoroughly to redistribute sedimentation. Use directly (one-component system; do not dilute).
Application Methods
Spraying, rolling, or brushing (refer to LZ100B Construction Operation Instructions).
Coverage Rate
| Dry Film Thickness (μm) | Consumption (kg/m²) | Coverage (m²/kg) |
|---|---|---|
| 150 | 0.29 | 3.45 |
| 200 | 0.39 | 2.59 |
| 250 | 0.48 | 2.07 |
| 300 | 0.58 | 1.72 |
| 350 | 0.68 | 1.48 |
Base Materials: The primary components of potting adhesive are silicone resins or polymers, curing agents (hardeners), and any additional fillers or additives (such as flame retardants, stabilizers, or pigments). These are carefully selected based on the desired properties, such as flexibility, temperature resistance, and electrical insulation.
Mixing: The base materials and additives are mixed in precise ratios to achieve the desired viscosity, workability, and curing characteristics. The mixture is usually done in controlled conditions to prevent contamination and ensure consistency.
The mixed ingredients are subjected to a homogenization process, where they are blended under specific conditions (such as heat or vacuum) to remove air bubbles and ensure uniform consistency. This step is crucial for preventing defects in the final product and ensuring that the adhesive performs as expected.
Additives, such as pigments or thickeners, may be incorporated during this stage to achieve the desired color, texture, or performance properties.
Depending on the formulation and the desired application, the potting adhesive mixture may undergo a degassing process. This involves placing the mixture in a vacuum chamber to remove any air trapped during the mixing process. This is important for eliminating bubbles, which could affect the final quality and electrical performance of the adhesive.
Molding: For some potting applications, the adhesive mixture is poured into molds that match the shape and size of the components to be encapsulated (such as circuit boards, sensors, or automotive parts).
Dispensing: In other cases, the potting adhesive is dispensed directly onto the components using automated dispensing equipment. This method is often used for encapsulating individual components in industrial or high-volume production settings.
The potting adhesive undergoes a curing process to harden and solidify. This can happen in two main ways:
Room Temperature Curing: Some potting adhesives are designed to cure at room temperature over a specified period. The curing agents activate at ambient temperatures, allowing for easy application without the need for external heat.
Heat Curing: In other cases, the adhesive may require a curing oven or autoclave to achieve the desired properties. Heat curing speeds up the curing process and ensures a more consistent final product.
The curing time and temperature depend on the specific formulation of the adhesive and the required performance characteristics.
After the initial curing, some potting adhesives undergo post-curing, a process that involves additional heat treatment to further enhance the adhesive's mechanical strength, chemical resistance, and thermal stability.
Post-curing can also be used to remove any residual solvents or volatile compounds from the adhesive, improving its final stability and performance.
Throughout the production process, the potting adhesive undergoes rigorous quality control checks to ensure it meets industry standards and specifications. This may include:
Viscosity and flow tests
Curing time and temperature monitoring
Electrical insulation resistance testing
Thermal stability and mechanical property evaluations
Any defective batches or deviations from quality standards are discarded or reprocessed to maintain consistency.
Once the potting adhesive has been cured and tested, it is packaged for shipment. It can be packaged in various forms, such as jars, cartridges, or bulk containers, depending on the application and customer requirements.
The final product is labeled with instructions for use, safety data sheets, and information on shelf life.
The finished product is stored under specific conditions to maintain its stability (e.g., in cool, dry environments) before being shipped to customers. Proper storage ensures the potting adhesive remains usable until it reaches the end user.
Throughout the entire process, strict quality control and safety standards are followed to ensure the potting adhesive performs optimally in its intended applications, whether that be in electronics, automotive systems, or industrial machinery.
Color Performance Testing
Color Adjustability: Evaluates the compatibility and stability of the coating with color pigments.
Color Difference (ΔE): Measures deviation from the standard color using a colorimeter.
Hiding Power: Determines the coating's ability to cover the substrate (e.g., black-and-white grid method).
Glossiness Test
Measures the surface reflectivity (high gloss, semi-gloss, matte, etc.) using a gloss meter.
Weather Resistance Testing
Artificial Accelerated Aging (QUV, Xenon Arc Test): Simulates UV, rain, and high temperatures to evaluate resistance to chalking, cracking, and discoloration.
Natural Exposure Test: Long-term outdoor testing for real-world durability.
Mechanical Performance Tests
Adhesion (Cross-cut Test, Pull-off Test): Assesses bonding strength between coating and substrate.
Elasticity/Flexibility (Bend Test, Impact Test): Evaluates crack resistance.
Abrasion Resistance (Abrasion Tester): Measures resistance to wear.
Stain Resistance
Simulates contamination (e.g., carbon black, dust) and evaluates self-cleaning ability after washing or rubbing.
Hydrophobicity
Contact Angle Test: Measures water droplet contact angle to assess water repellency.
Chemical Resistance
Evaluates resistance to acid rain, salt spray (neutral salt spray test), alkalis, etc.
Hazardous Substance Detection
VOC (Volatile Organic Compounds) Content: Compliance with environmental standards (e.g., GB 18582-2020).
Formaldehyde & Heavy Metals (Lead, Cadmium, etc.): Ensures non-toxicity.
Breathability Test
Measures water vapor transmission rate to prevent moisture and mold growth.
Scrub Resistance (Key for Interior Coatings)
Evaluates coating integrity after repeated scrubbing (e.g., GB/T 9266).
Mold & Mildew Resistance (For Humid Environments)
Assesses microbial growth resistance via mold culture tests.
Fire Resistance (For Special Applications)
Flame retardancy rating (e.g., GB 8624-2012).
High & Low-Temperature Resistance
Thermal cycling tests (e.g., -40°C to 80°C) to check for cracking or peeling.
Radiation Resistance (For Special Environments)
Evaluates UV or gamma radiation resistance.
Non-Toxicity Verification
Biocompatibility tests (e.g., skin irritation test).
Depending on the application (interior/exterior) and the properties of silicone-based coatings, comprehensive testing is required to ensure decorative performance, durability, environmental safety, and special functionalities. Testing should comply with national (GB, ISO, ASTM) or industry standards.
Silicone-based coatings are widely used in various industries due to their exceptional durability, weather resistance, hydrophobicity, and environmental friendliness. Below are the key application areas:
Weather Resistance: Protects against UV rays, rain, and extreme temperatures.
Anti-Pollution: Prevents dirt, algae, and mold growth due to hydrophobic properties.
Color Retention: Maintains aesthetic appeal for years without fading.
Crack Bridging: Flexible silicone coatings prevent cracking in concrete and masonry.
Low VOC & Non-Toxic: Safe for homes, hospitals, and schools.
Mold & Mildew Resistance: Ideal for humid environments (bathrooms, kitchens).
Washability: Easy to clean without damaging the coating.
Waterproofing: Silicone elastomeric coatings prevent leaks in flat roofs.
Solar Reflectivity: Reduces building cooling costs (cool roof coatings).
Thermal Stability: Withstands high temperatures without degrading.
Chemical Resistance: Protects metal structures (bridges, pipelines, tanks) from acids, alkalis, and saltwater.
High-Temperature Resistance: Used in chimneys, exhaust systems, and industrial equipment.
Saltwater Resistance: Prevents corrosion on ships, offshore platforms, and docks.
Fouling Resistance: Reduces marine organism buildup (non-toxic alternative to traditional antifouling paints).
Heat-Resistant Coatings: Used on engine parts, exhausts, and aircraft exteriors.
Aesthetic & Protective Finishes: Scratch-resistant coatings for car bodies.
Self-Cleaning: Reduces dust accumulation, improving efficiency.
UV Protection: Extends the lifespan of photovoltaic cells.
Dielectric Properties: Used in circuit boards and electrical insulation.
Thermal Management: Heat dissipation coatings for electronics.
Non-Toxic & FDA-Approved: Used in food processing equipment and packaging.
Easy-to-Clean Surfaces: Prevents bacterial growth in hospitals and labs.
Water & Stain Repellency: Used in outdoor fabrics, shoes, and upholstery.
Breathability: Maintains comfort while repelling liquids.
Stone & Monument Preservation: Protects against weathering, pollution, and graffiti.
Smart Coatings: Self-healing, temperature-responsive, or photocatalytic coatings.
Medical Devices: Biocompatible coatings for implants and surgical tools.
Space & Defense: Extreme temperature and radiation resistance for spacecraft.
Long-lasting (superior durability compared to acrylics and epoxies).
Eco-friendly (low VOC, non-toxic, and sustainable).
Versatile (works on concrete, metal, glass, plastic, and more).
Low Maintenance (self-cleaning and stain-resistant properties).
Silicone coatings are revolutionizing industries by offering high performance, sustainability, and cost-effectiveness over traditional coatings.
Standard: ASTM D1056-20
Test Protocol: 1000 thermal cycles (-55°C to 125°C), 50% compression
Results:
DC800-015: 1.1%
DC800-020: 1.3%
DC800-025: 1.6%
DC800-030: 2.3%
DC800-035: 3.1%
DC800-042: 3.4%
DC800-045: 4.2%
DC800-050: 3.9%
DC800-055: 4.0%
Certification Body: SGS
Highlights: Demonstrates outstanding long-term resilience and thermal stability across the full series.
Standard: GB/T 1695-2005
Results:
DC800-035: 3.0 kV/mm
DC800-042: 3.1 kV/mm
DC800-045: 3.1 kV/mm
Certification Body: SGS
Highlights: Ensures excellent insulation properties for high-voltage and sensitive electronic applications.
RoHS: Fully compliant with EU Directive 2011/65/EU and its amendment (EU) 2015/863; all restricted substances within regulatory thresholds.
REACH: No SVHCs (Substances of Very High Concern) detected.
Halogen-Free: Non-detectable levels of fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).
Certification Body: SGS
Highlights: Environmentally friendly and non-toxic; suitable for applications requiring strict material safety.
Standard: ASTM D1056-14
Test Protocol: 180° bend at -55°C for 24 hours
Results: No visible cracking or deformation
Highlights: Maintains flexibility and integrity in extremely low temperatures, ideal for cold-environment applications.
Broad Temperature Resistance
Operational range: -55°C to 125°C
Maintains stable performance across 1000 thermal cycles
Reliable Mechanical Strength
Compression set ≤ 4.2% across all variants
Resilient with minimal long-term fatigue
Superior Electrical Insulation
Dielectric strength ≥ 3.0 kV/mm
Optimized for sensitive electronic insulation needs
Full Environmental Certification
Certified RoHS, REACH, and halogen-free
Suitable for medical, consumer, and food-grade applications
Customizable & Versatile Product Line
Available in grades from DC800-015 to DC800-055
Customizable in thickness, hardness, and functional attributes
Electronics: Shock-absorbing pads, EMI shielding seals
Automotive: Weather seals, vibration dampening components
Medical Devices: Eco-safe materials for sensitive applications
Industrial Equipment: Durable gaskets and sealing systems
All certifications are issued by SGS, a globally recognized third-party testing body.
Traceable test reports include:
Compression Set: SUIN21080062XXMR_CN
Dielectric Strength: SHIN210805363XMR_CN
Environmental Compliance: SHAEC2116203002/4002
With a robust foundation of international certifications and tested performance metrics, Dacchuang Kehua's DC800 foamed silicone series is an ideal material choice for high-reliability and safety-critical applications. We remain committed to delivering innovative, environmentally conscious, and high-performance silicone solutions.
Hangzhou Dachuang Kehua New Materials Co., Ltd. - Innovating Advanced Silicone Solutions
Hangzhou Dachuang Kehua New Materials Co., Ltd. is a national high-tech enterprise focused on the research, production, and sales of high-performance silicone materials. Headquartered in Hangzhou's Qingshanhu Science and Technology City-a key hub within China's National Science and Technology Innovation Corridor-the company thrives on cutting-edge R&D and collaboration with top research institutions. With a team of industry experts, Dachuang Kehua has built an integrated platform for innovation, manufacturing, and sales, driving advancements in silicone material applications.
Technology-Driven Innovation
Proprietary production processes for liquid/solid foamed silicone, thermal conductive materials, and potting compounds.
Breakthrough DC800 Series Liquid Foamed Silicone:
No external foaming agents required (eco-friendly).
Superior weather resistance, flame retardancy (UL94 V-0), and rebound performance.
Certified Excellence
ISO9001, IATF16949 (automotive standard).
Global compliance: UL/CUL, RoHS 2.0, REACH, SGS tested.
Industry-Specific Solutions
Tailored for new energy vehicles (EV batteries, charging piles), energy storage, 5G communications, and aerospace, offering:
Sealing (IP68), thermal management, shock absorption, and fireproofing.
1. Core Products
Foamed Silicone:
DC800 Series (low/medium/high density) - IP68 sealing, vibration damping, extreme temps (-55°C to 200°C).
DC900 Series (rigid foam) - Structural support, sound insulation.
Thermal Management:
DC10 Series pads & DC21 Series potting compounds - Lightweight heat dissipation for batteries.
Fireproof Materials:
DC400 Series ceramicized silicone - Thermal runaway protection.
High-Performance Composites:
DC600 Series (silicone + PTFE) - Chemical/corrosion resistance.
2. Key Industries Served
EV/Batteries: Cell cushioning, liquid cooling plate support, PACK sealing (IP68).
Energy Storage: Fireproof insulation, cabinet sealing (IP67).
5G/Electronics: EMI shielding, housing waterproofing.
Construction/Industrial: PV inverters (UL94 V-0), steel structure seals.
Advanced Testing Lab: 30+ performance tests (thermal, mechanical, flame resistance, etc.).
Automated Production: Precision mixing, vulcanization, and cutting for consistency.
Partnering with industry leaders like CATL, BYD, Huawei, and global players in new energy, energy storage, and telecom.
Q1. How can I obtain an accurate project-specific quotation?
A1. Provide these key details for a precise quote:
Surface type (concrete/metal/composite) and condition
Required dry film thickness (μm)
Total coverage area (m²) with project drawings
Environmental exposure (marine/industrial/coastal)
Packaging format (20L drums/IBC tanks/bulk)
Delivery terms (FOB/CIF/DDP) and destination port
Certification requirements (ISO/UL/EN)
Q2. What OEM customization do you offer?
A2. Full OEM services include:
Custom formulation adjustments (viscosity/cure time)
Private labeling with brand-specific packaging
Technical datasheet and SDS customization
Batch-specific QC documentation
Minimum order quantity: 2 tons (negotiable for strategic partners)
Q3. What are the application limitations?
A3. Critical application parameters:
| Parameter | Operating Range |
|---|---|
| Ambient Temperature | 5°C to 35°C |
| Surface Temperature | 3°C above dew point |
| Relative Humidity | ≤85% |
| Recoat Window | 2-4 hours (23°C/50%RH) |
Q4. How should samples be requested?
A4. Sample protocol:
Free 500g samples for color matching
Performance test samples (1kg) available with nominal fee
Lead time: 3-5 working days domestically
International samples shipped via DHL/FedEx at cost
Q5. What is the product's shelf life?
A5. Shelf life specifications:
12 months in original sealed containers
Storage conditions: ≤25°C/40% RH in ventilated warehouse
Post-opening: 3-month usability with nitrogen blanketing
Q6. What certifications do you hold?
A6. Current certifications:
ISO 12944 (Corrosion Protection)
GB/T 23446 (Chinese Waterproofing Standard)
EN 1504-2 (Concrete Protection)
Test reports available: NACE TM0304, ASTM D5894
Q7. What are your production lead times?
A7. Standard manufacturing timeline:
| Order Volume | Standard Lead Time | Expedited Service |
|---|---|---|
| <5 tons | 7 working days | 3 days (+20% fee) |
| 5-20 tons | 10 working days | 5 days (+15% fee) |
| >20 tons | 15 working days | 7 days (+10% fee) |
Q8. What payment terms do you accept?
A8. Flexible payment options:
New clients: 50% advance + 50% against B/L copy
Established clients: 30-day L/C at sight
Projects >$50k: Milestone-based payments
Q9. How does it perform in extreme climates?
A9. Validated performance:
Arctic: Maintains flexibility at -45°C (ASTM D746)
Desert: UV resistance >10,000 hours (ISO 11507)
Tropical: 100% humidity resistance (ASTM D2247)
Seismic zones: Accommodates 5mm substrate movement
Q10. What technical support do you provide?
A10. Comprehensive support package:
On-site application training
DFT measurement equipment calibration
Failure analysis with lab testing
Annual coating integrity audits
Q11. Are eco-friendly formulations available?
A11. Sustainable options:
Zero-VOC version (≤5g/L)
Recyclable packaging program
GRS-certified bio-based raw materials
EPD (Environmental Product Declaration) available
Q12. How do you handle quality complaints?
A12. Our 4-step resolution process:
Sample collection within 48 hours of notification
Lab analysis report in 5 working days
On-site technical assessment
Replacement commitment: 30-day resolution guarantee
EXTENDED SUPPORT SERVICES
Color Matching: Digital spectrophotometer service (ΔE<0.5)
Project Calculation: Free consumption estimation software
Emergency Response: 24/7 technical hotline (+86 XXX XXXX XXXX)
Documentation: Customized O&M manuals with multilingual options
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